Road Bike
Clearance

Glass Slipper
Shoe Sale

Mountain Bike
Clearance

Kid's Bike Trade Up

What's New?

Is it New Bike Time? Always!
06/01/19- Don't waste another nice day on impulse power when you could be riding at Warp 9. Chain Reaction features the very best bikes from Trek & Electra, as well as the highest-quality travel bikes from Bike Friday. Road, Mountain, Hybrid, Electric assist, Kids... we've got them all. Probably the best selection in a single location you'll find anywhere on the peninsula too.
Got a bike that needs repairs?
If you purchased your bike from us, remember that you can bring it in anytime, without calling ahead, for minor on-the-spot adjustments of brakes, gears and wheels (at no charge; this is included with any bike purchased from us). For flat tires, again, no appointment needed. Where possible we try and do flat tires while you wait, but there will be times that's not possible. At most you will be leaving your bike overnight.

For normal (bigger) repairs, our backlog is bad and getting worse. Please call ahead to schedule our next-available appointment if you can; then your bike will be here for just a day or two. Otherwise, it could be two weeks. We are also running out of space to even store repairs, so at some point we may have to temporarily stop taking more. This could be the case at many shops known for high-quality service. Not helping matters has been the demise of several local bike shops (the most recent of which is Talbots Cyclery in San Mateo), which adds to the strain the remaining shops are feeling.
It's E-Bike time at Chain Reaction! E-Bikes are the latest thing; find out why! Commute to the office without needing a shower, bring home the groceries (even if you live on top of a hill!) or keep up with your obsessive-cyclist partner. Prices start at just $1299 (Oyama folding E-bike) up to the incredible Trek Super Commuter 8 at $5199. They're not a secret anymore; everyone seems to have one. Find out why!


Disc Brakes for Road Bikes- Making the right choice

Disc brakes are the latest thing for road bikes. But are they the right choice for you? We discuss the trade-offs including benefits, cost, added weight and maintenance requirements.

Just a few of the bikes we sell. One of them is just right for you!

Trek Dual Sport+
$2,199.99 $2,899.99 24% Savings
DS Series is the ultimate hybrid: part refined city bike, part adventurous ...
Electra Cruiser Lux 7D Step-Over
$449.99 - $499.99 $479.99 - $499.99 Up To 10% Savings
Lightweight aluminum modern cruiser with over twenty years of refinement bu...
Trek Zektor i3
$849.99 $1,099.99 23% Savings
Zektor is a new way to move through cities and urban areas. It's just as pr...
Trek Powerfly 8 FS Plus
$3,999.99 $4,999.99 20% Savings
Powerfly builds on its success with a new full suspension lineup that borro...
Trek Domane SL 7 Women's
$3,999.99 $4,999.99 20% Savings
Key features - Front and Rear IsoSpeed decouplers smooth rough roads - ...
Trek Conduit+
$1,999.99 $2,999.99 33% Savings
Partake in all the joys of riding a bike without breaking a sweat or ever g...
Trek 7.7 FX
$1,399.99 $1,889.99 26% Savings
Trek's 7.7 FX delivers unparalleled versatility that rockets along roads, c...
Trek Madone 9.2
$3,499.99 $5,999.99 42% Savings
Trek's Madone 9.2 strikes the ideal blend of aerodynamics, weight, technolo...
Electra Townie Go! 8i
$2,299.99 $2,299.99 - $2,729.99 16% Savings
Power when you need. Pedals when you don’t. Townie® Go! is a battery-powere...
Electra Cruiser Lux 7D Step-Thru
$449.99 - $499.99 $479.99 - $499.99 Up To 10% Savings
Lightweight aluminum modern cruiser with over twenty years of refinement bu...
Trek Domane SL 6
$2,549.99 - $2,799.99 $3,199.99 Up To 20% Savings
Key features - Front and Rear IsoSpeed decouplers smooth rough roads - ...
Electra Loft 3i Step-Thru
$499.99 - $539.99 $539.99 - $549.99 Up To 9% Savings
Just enough gussy to get you up. The 3i is an all-weather, low-maintenance ...
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